ibhayisikili
Imigomo Emisha Yokwakhiwa Kwereferensi ye-48 V Yokuthuthukisa Ukukhula kwe-E-Bike kanye ne-E-Scooter
Isidingo samabhayisikili e-inthanethi, ama-e-scooters, nokuthengiswayo okuhlobene ngokungangabazeki siyanda. Eqinisweni, ku-athikili ethi ukuthi ama-e-bikes aklanywa kanjani, Umnikeli we-AAC u-Steve Arar uphawula ukuthi inkampani ye-e-bike i-Lime esikhathini esingengakanani edlule yethule ukuthi isifinyelele ukugibela kwezigidi ezingu-150 eminyakeni emi-3 nje kuphela.
Ingqikithi yokuthengiswa kwebhayisikili ye-E eminyakeni embalwa edlule. Isithombe sisetshenziswe ngenhlonipho Umjikelezo Volta
Ukusiza ukuthuthukisa nokuthuthukisa isayensi esetshenziswayo, I-Renesas isanda kukhipha isisombululo esisha sokuhamba kwe-48 V. Ebiza isinqumo sabo ngokuthi "ingxube eyimpumelelo," u-Renesas uzwakalise ukuthi unethemba lokuthi idizayini yesithenjwa izosiza amakhasimende ukuthi asheshise imiklamo yawo futhi awaqhubekisele emakethe ngokushesha.
Kungani 48 Volts?
I-48 V ingabukeka njengenani elingenangqondo, nokho empeleni kufeza injongo ethile.
Ngokwesiko, i-12 V bekuyisiteji samandla kagesi esijwayelekile sokusabalalisa amandla emisebenzini eminingi. Kodwa njengoba amayunithi kusuka kumathuluzi wamandla kuya kuma-server rack akhula futhi adinga amandla engeziwe, I2Ukulahleka kuka-R kuye kwashintsha kwaba okubalulekile. Ngakho-ke, ukulwa nale nkinga, onjiniyela baye baqala ukwenza i-48 V njengendlela evamile yokuhlinzeka amandla ohlobo lwezimboni.
Ukuletha inani elifanayo lamandla emthwalweni ongu-48 V uma kuqhathaniswa no-12 V kunikeza izikhathi eziyi-16 ngaphansi kakhulu2R ukulahlekelwa—akukho okungahlekwa ngakho. Futhi njengoba amasu e-e-bike ngokuvamile adinga ukuphuma kwamandla amaningi enjini ngenhloso yokukhiqiza itorque eningi, i-48 V isishintshile yaba eyejwayelekile emiklameni eminingi.
I-Renesas' Reference Design ye-48 V
Ngalokhu okujwayelekile emicabangweni, iRenesas isiqalile manje isixazululo esisha sokuhamba samabhayisikili e-e eklanywe ku-48 V.
Izinjongo zesinqumo seRenesas esisha sha. Isithombe esisetshenziswe ngenhlonipho ye AmaRenas
Lo mklamo wereferensi usebenzisa isu le-modular ukusiza ngaphakathi komklamo womgogodla ngamunye kanye namabhulokhi asebenzayo atholakalayo ngokuzithandela angase asetshenziswe ngobuningi obungu-24 V–48 V. Umklamo ngokwawo uqukethe ama-Renesas IC angu-15 ahluke ngokuphelele, agqanyiswe yi-ISL94216 16 -cell battery entrance finish (BFE), abashayeli be-HIP2211 100 V MOSFET, kanye ne-RX23T 32-bit microcontroller yokuphathwa kwezimoto.
Impendulo yakhelwe ukuthi inikwe amandla ngebhethri ye-Li-ion engu-25 AHr eshayela isiguquli esingu-1,600 W, esilungele ukufinyelela isivinini esifinyelela ku-5,000 rpm.
Amabhuloki Aphambili
Uhlelo luqukethe amabhulokhi amabili abalulekile asebenzayo kanye namabili atholakala ngokuzithandela. Amabhulokhi angokoqobo abalulekile ahlanganisa ukuphela kwebhethri (BFE) kanye nebhodi lokuphatha izinjini kuyilapho amabhulokhi atholakala ngokuzithandela kuyibhodi yokuphatha amandla aphansi e-Bluetooth kanye nebhodi lesamukeli sokushaja i-wi-fi.
I-BFE izidla ngaphezu kuka-200 mA ukulinganisa kwamaseli wangaphandle, i-Renesas ethi ivumela ukushajwa kabusha kanye nokusetshenziswa ngokweqile kumaphakethe amakhulu ebhethri.
Umdwebo webhulokhi yesistimu. Isithombe esisetshenziswe ngenhlonipho ye AmaRenas
Ibhodi lokuphathwa kwezimoto lisiza iphakethe lebhethri elingu-48 V futhi lingase lifinyelele ku-5,000 RPM lisebenzisa i-1,600-W inverter powertrain enezinzwa zokuphatha izimoto.
Inhloso-Yakhelwe Izinketho Zokuhamba
Ngalokhu kwethulwa, i-Renesas inethemba lokusiza amakhasimende ayo ukuthuthukisa amabhayisikili e-e kanye nenqwaba yezinketho zokuhamba ezihlukahlukene. Ngokuvumelana nenkampani, impendulo yakhelwe imisebenzi efana nokugunda utshani, izinqola zikagesi, izihlanzi zamarobhothi, izinsimbi zamandla, izindawo zokugcina amandla, nokunye okwengeziwe.
U-DK Singh, umqondisi weqembu lamasu nezinketho e-Renesas, uthi, “Isixazululo sethu esisha esiyimpumelelo sokunyakaza kwe-48 V sihlanganisa i-BFE ephakeme ka-Renesas, ama-MCU ahamba phambili embonini, kanye namayunithi e-analog namandla, kanye nolwazi lwesimanje lokuphathwa kwezimoto ukusiza amakhasimende. ukusheshisa umcimbi wamandla abo eqile nama-torque e-scooters nama-e-bikes.”